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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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test/hotspot/jtreg/compiler/vectorization/TestForEachRem.java Normal file
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/*
* Copyright (c) 2020, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 8251994
* @summary Test vectorization of Streams$RangeIntSpliterator::forEachRemaining
* @requires vm.compiler2.enabled & vm.compMode != "Xint"
*
* @run main/othervm -Xbatch compiler.vectorization.TestForEachRem test1
* @run main/othervm -Xbatch compiler.vectorization.TestForEachRem test2
* @run main/othervm -Xbatch compiler.vectorization.TestForEachRem test3
* @run main/othervm -Xbatch compiler.vectorization.TestForEachRem test4
* @run main/othervm -Xbatch compiler.vectorization.TestForEachRem test5
* @run main/othervm -Xbatch compiler.vectorization.TestForEachRem test6
*/
package compiler.vectorization;
import java.util.stream.IntStream;
public class TestForEachRem {
static final int RANGE = 512;
static final int ITER = 100;
static void test1(int[] data) {
IntStream.range(0, RANGE).parallel().forEach(j -> {
data[j] = j + 1;
});
}
static void test2(int[] data) {
IntStream.range(0, RANGE - 1).forEach(j -> {
data[j] = data[j] + data[j + 1];
});
}
static void test3(int[] data, int A, int B) {
IntStream.range(0, RANGE - 1).forEach(j -> {
data[j] = A * data[j] + B * data[j + 1];
});
}
static void test4(int[] data) {
IntStream.range(0, RANGE - 1).forEach(j -> {
data[j + 1] = data[j];
});
}
static void test5(int[] data) {
IntStream.range(0, RANGE - 2).forEach(j -> {
data[j + 2] = data[j];
});
}
static void initByte(byte[] data) {
IntStream.range(0, RANGE).parallel().forEach(j -> {
data[j] = (byte)j;
});
}
static void test6(byte[] data) {
// 2-byte offset -> can only vectorize if alignment not required by hardware
IntStream.range(0, RANGE - 2).forEach(j -> {
data[j] = data[j + 2];
});
}
static void verify(String name, int[] data, int[] gold) {
for (int i = 0; i < RANGE; i++) {
if (data[i] != gold[i]) {
throw new RuntimeException(" Invalid " + name + " result: data[" + i + "]: " + data[i] + " != " + gold[i]);
}
}
}
static void verify(String name, byte[] data, byte[] gold) {
for (int i = 0; i < RANGE; i++) {
if (data[i] != gold[i]) {
throw new RuntimeException(" Invalid " + name + " result: data[" + i + "]: " + data[i] + " != " + gold[i]);
}
}
}
public static void main(String[] args) {
int[] data = new int[RANGE];
int[] gold = new int[RANGE];
byte[] dataB = new byte[RANGE];
byte[] goldB = new byte[RANGE];
if (args.length == 0) {
throw new RuntimeException(" Missing test name: test1, test2, test3, test4, test5");
}
if (args[0].equals("test1")) {
System.out.println(" Run test1 ...");
test1(gold);
for (int i = 0; i < ITER; i++) {
test1(data);
}
verify("test1", data, gold);
System.out.println(" Finished test1.");
}
if (args[0].equals("test2")) {
System.out.println(" Run test2 ...");
test1(gold);
test2(gold);
for (int i = 0; i < ITER; i++) {
test1(data); // reset
test2(data);
}
verify("test2", data, gold);
System.out.println(" Finished test2.");
}
if (args[0].equals("test3")) {
System.out.println(" Run test3 ...");
test1(gold);
test3(gold, 2, 3);
for (int i = 0; i < ITER; i++) {
test1(data); // reset
test3(data, 2, 3);
}
verify("test3", data, gold);
System.out.println(" Finished test3.");
}
if (args[0].equals("test4")) {
System.out.println(" Run test4 ...");
test1(gold); // reset
test4(gold);
for (int i = 0; i < ITER; i++) {
test1(data); // reset
test4(data);
}
verify("test4", data, gold);
System.out.println(" Finished test4.");
}
if (args[0].equals("test5")) {
System.out.println(" Run test5 ...");
test1(gold); // reset
test5(gold);
for (int i = 0; i < ITER; i++) {
test1(data); // reset
test5(data);
}
verify("test5", data, gold);
System.out.println(" Finished test5.");
}
if (args[0].equals("test6")) {
System.out.println(" Run test6 ...");
initByte(goldB); // reset
test6(goldB);
for (int i = 0; i < ITER; i++) {
initByte(dataB); // reset
test6(dataB);
}
verify("test6", dataB, goldB);
System.out.println(" Finished test6.");
}
}
}